Wheel.



I. N. POWERS.

WHEEL. APPLICATION FILED SEPT. I9 1916- Y Patented May 22, 1917.

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JOHN N. POWERS, OF WASHINGTON, DISTRICT OE COLUMBIA, ASSIGNOR TO UNITEDSTATES ORDNANCECO., OF WASHINGTON, DISTRICT 0F COLUMBIA, A CORPORATION0F VIRGINIA.

1 WHEEL.

Patented May 22,1917.

Application filed September 19, 1916. Serial No. 120,915.

To all whom it may concern.'

Be it known that I, JOHN N. POWERS, a citizen of the United States,residing at lVashington, District of Columbia, have invented certain newand useful Improvements in Wheels; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

My invention relates to improvements in wheels and particularly towheels for use on railway cars of all kinds where it is desired tomaterially' reduce the noise incident to the operation of the wheel inthe progress of the car over the track.

To this end myrinvention contemplates the production 'of a wheelembodying a rim member and a core member and a layer of non-resonantmaterial interposed between said member, the core member being so shapedas to'produce a substantially perfect balance of the wheel during itsrotation and said members interlocking in such manner that the coremember is held against outward displacement by the rim member, whiletendency of the core member to displace inwardly is transmitted throughthe axle and counteracted by the inability of the core member of theopposite wheel to displace outwardly.

My invention further contemplates the production of a wheel of the typenamed wherein the use of boltsl in constructing the wheel is entirelyeliminated and in addi` tion my invention also contemplates providing anovel form, and mounting of face or side plates which fully protect theinterior portions of the wheel and are so constructed that they can beapplied and will remain in assembled position without the use of bolts.

I will describe the invention in the best form known to me at presentbut it will be obvious that various changes in the detailsofconstruction and in the arrangements of parts can be resorted to withthe exercise of only ordinary mechanical skill. In the drawings chosento illustrate my invention, the scope whereof is set forth v in theclaims- Figure 1 is a view in elevation of my improved wheel looking atthe outer side thereof and with the face plate removed;

Fig. 2, a vertical section of the wheel with the face plates in the formthey would possess before being forced into proper shape under pressure;

Fig. 3, a view similar to Fi 2 with the face plates pressed into final sape;

Fig. 4, a perspective view of the core member of the wheel, and Y Fig.5, a view showing a pair of wheels mounted on an axle', the wheels beingshown -in section land resting upon respective rails of a railway track.4 L

Referring to the drawings A indicates the rim member of the wheel andincludes an inner section 10 and a tire section 11 which is shrunk uponthe section 10 and constitutes in y conjunction with the lattersubstantially one piece. My improved wheel further embodies acorelmember B having a central passage 12 therethrough which is adaptedto receive the spindle of.. an axle as is well known, such axlebeingindicated at 13 1n Fig. 5. The core member B embodies a circularsection 14 having its periphery concentric-with the axis of the opening12, and

said section being provided with .a lateral e extension 15 havingkopposite recesses 16 adapted to receive inwardly extending-'lugs v17 onthe section 10 of the\rim,member,A.

These lugs 17` abut the outer face of the circular section 14 of thecore and serve as a means of preventing outward displacement of the corerelatively to the rim member. Theperipheral surface of the circularsection 14 and the corresponding surface of the extension 15 arecoveredwith a layer of suitable non-resonant material 18, which material, whenthe parts of the wheel are assembled is interposed between the innerperiphery of the rim member A and the core B.

The rim member A has its inner periphery provided with continuousgrooves 19 and 20,

v while the core member is provided with continuous grooves 21 and 22.The grooves 19 and 21 are adapted to receive the edge portions of a faceplate 23 while the grooves 20 and 22 are adapted to receivethe edgeportions of a face plate 24. These plates 23 and 24 when rst appliedhave annular bulges 26. When the plates are positioned as shown in Fig.2 the bulges 26 are subjected to pressure and flattened out so that theface plates assume the shape shown in Fig. 3 and in this operation theedge portions of the plate 23 will enter the grooves 19 and 21 while theedge portions of the plate 24 will CIO enter the grooves 2O and 22 andthus complete the assembling of the wheel.

By referring to Fig. 5 it will be obvious that if the core member of thewheel on the right handside tends to displace outwardly it will bearrested by the lugs 17 of the rim member A while the latter'is heldagainst outward movement by engagement of the usual wheel flange withthe rail. Should the core of th-e wheel on the rightV hand side in F ig.5 tend to displace inwardly such tendency will be transmitted throughthe axle 13 to the core member of the wheel on the left hand side ofFig. 5 but as this last named core member is held against outward dis-Vplacement it counteracts thetendency of the core member on the righthand side to displace inwardly. j

F rom the foregoing it will be noted that my improved wheel pr-esentslittle or no opportunity for the transmission of sound vibration fromthe'rim member to the core member while the face plates are subjected tosubstantially no strain and simply perform the function of forcing andholding the non-resonant material in proper position.

Furthermore my improved construction resists wear and tear on the wheelitself and upon the road bed and rails and in addition prolongs the lifeofthe rolling stock in which the wheels are employed.

lVhat is claimed l. A wheel for preventing the transmis` sion of soundvibrations embodying a rim member, a core including a circular portionconcentric with the rim member and having a diameter equal to themaximum diameter of the core, lugs on the rim member inter- Coyies ofthiix patent may be obtained for ve, cents each, by addressing theWashington, D. C.

resonant material interposed between the r Vrim member and core.

3. A Wheel for preventing the `transmission of sound vibrationsembodying a lrim member, a 'core' having a circular portionconcentrlc'vvlth thernn member; an eXten- 5 sion on the outer face ofthe circular portion having opposite recesses, lugs on the` rim memberengaged in respective recesses, and, noneresonant material interposedvbetween Y the rim member and core. Y

' 4. A wheel forpreventing the transmission Vof sound `vibrationsembodying a rim member, a core,rlugs Von the Vrim member' Y bearingagainst a portion ofthe outer face of the core and interlocking with thelatter, Y

non-resonant material Vinterposed between the rim member and core, andface plates having their edge portions engaged respectively in groovesin the inner circular face of the rim member and grooves in the core. H

In testimony whereof I aiiix my signature, in the presence of twosubscribing witnesses.

` JOHN N. POWERS.. Witnesses FRANK W. vCUMMINS, PAUL A. WINTER.

Commissioner 'of Patents,

